Catamount

Rugged and Easy to Install

The Catamount Coldframe greenhouse is rugged and easy to install. Simply slip the one piece bow into the ground posts, add your purlin(s) and you are ready to go. These coldframes can withstand heavier snow loads as a result of the purlin being connected to the bow using a cross connector system, as opposed to drilling and bolting a purlin to the bow. The Catamount Coldframes are available in 15' widths. You can also order extended ground posts for additional height in the greenhouse.

Features & Benefits

4', 5', or 6' bow spacing

Bows are 1.315'', 17 ga. galvanized steel tubing

The top purlin is connected to the bow using a cross connector allowing for maximum bow strength as opposed to drilling and bolting a purlin to the bow

The 15' width is perfect for 15' wide ground cover and 24' wide poly

Ground posts are 1.66'', 14 ga. galvanized steel tubing

Base Package

Pre-drilled steel frame

Hardware & instructions

2' × 4' end wall framing brackets

Double layer of 6 mil, 4 year, clear polyethylene film

Wire lock for the roof only

Inflation blower

Custom Options

Gas Heat

The gas heat option includes a Reznor heater, a double-walled vent pipe assembly, and a thermostat.

Mechanical Ventilation

The mechanical ventilation option includes a 2-speed fan with an automatic belt tightener, 2 motorized shutters and thermostats.

Roll-Up Sides

The roll-up sides option includes roller bars and all necessary hardware for 2 roll-up sides.

Gear Box Option for Roll-Up Sides

This option includes gear box operators and all hardware to facilitate the rolling up and down of the sides.

Build Your Greenhouse

Catamount FAQ's

What do I do if I have rocky ground?

Several things can be done to alleviate poor ground conditions. You can auger out holes or dig a trench, and back fill them with stone dust. If you have just a few trouble spots, you can cut the post, and concrete around the post for additional bracing. Or, if none of the above work, you can choose another site.

How much does it cost to extend my ground posts so that I can get additional height?

The cost is about $10 per ground post to raise the greenhouse an additional 2 ft. in height and about $18 per ground post to raise the greenhouse an additional 4 ft. in height. Since we are a manufacturer we are flexible and can raise the height anywhere between 1 ft. and 4 ft. This price also takes into account the additional hardware you will need with the extra height.

What is involved in the construction when I get extended ground posts?

As we increase height, we also increase depth. Therefore, you will have to go deeper with your posts. This stability is very important when maintaining snow loads and wind loads. You will also be required to use larger sized poly.

What do I do if I am in an excessively windy area?

We include a wind bracing kit which provides diagonal bracing on all four corners of the greenhouse for extra rigidity. Additional wind bracing can be added if necessary.

Do purlins add strength to the greenhouse?

No, they only help with wind load.

Are these taxable structures, and do I need a building permit?

In most states this type of structure is considered a temporary greenhouse and is non-taxable. However, you need to check with your local authorities or trade associations to see if you are exempt from taxation with this type of structure. Most towns are lenient with building permits due to the fact that these greenhouses are considered an agricultural accessory. However, check with local authorities about permits. Even though you may not need a building permit, you may need other permits for electrical or plumbing.

How much space should I allow in between greenhouses?

You should allow 10 to 12 feet in between greenhouses for the collection and removal of snow. It also helps to have the space for recovering a greenhouse if you bring the plastic from one side over to the other.

What are some of the red flags in site selection?

Terraced land is always dangerous for snow build-up. Snow can tend to collect on one side and not build up on another side, and possibly lead to failure. Terraced land also can result in serious drainage problems. Building within 20 feet of a tall building such as a barn can also lead to drifting snow or ice chunks ripping the plastic. Building near the tree line can result in damage to poly and reduce light levels significantly. Use common sense in site selection.

Can I inflate roll-up sides/curtains?

Yes, by simply using a jumper tube, you can inflate your roll-up sides. However, usually the poly is tight and since you have little heat loss through your sides, most people opt not to inflate roll-up sides.

Do I need a roof vent for natural ventilation or will roll-up sides be enough?

Roof vents definitely enhance ventilation, however, roll-up sides usually are adequate for ventilation. Shade cloth can be used to also help cool a greenhouse with roll-up sides. You can also add a small gable fan and shutter for some winter cooling if you do not want to roll up the sides during the cooler months.